Let me add a comment here on why we can't just emit a signal to
everyone...

In the future it is not impossible that many apps are connected to
Zeitgeist. Indeed if we have a hook in Gtk+ or Glib then *all* apps are
connected to us. Thus we'd send a signal to all desktop processes -
waking them up - meaning bad power and CPU usage. Especially on embedded
devices and netbooks this could be notable.

-- 
Add event notification and subscription system
https://bugs.launchpad.net/bugs/488967
You received this bug notification because you are a member of
Zeitgeist-Engine, which is the registrant for Zeitgeist Framework.

Status in Zeitgeist Framework: Confirmed

Bug description:
Zeitgeist 0.2 relayed all incoming events over the bus. This might be a bit 
over the top, but apps still need a way to get notified of events elsewhere in 
the system.

This bug relates a lot to bug #447417 "Zeitgeist should have any kind of system 
to protect users privacy" where a dynamic black listing system is needed. This 
is sort of inverse to a notification system (only "sort of" mind you).

I want to use this bug as a tracker an reminder for us/me to finish this 
feature. I have it pretty cut out in my head, so if any one else starts on this 
please ping me...

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